Status is updated here whenever there is news to report:
https://www.thestarwarstrilogy.com/project-4k80/
It is still being actively worked on (as was actually explained in the post you quoted), if you check the last updated date, the status wheels were updated yesterday.
It’s done when it’s done, and frankly everytime somebody asks me “When’s it going to be done?” - which is no different to asking “how long is a piece of string?” because nobody can know the answer to that question - you only make it take longer - I could have cleaned another 24 frames of 4K80 in the time it took to answer this stupid question. Again.